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Apatorthis
Taxonomy
Apatorthis was named by Opik (1933). Its type is Apatorthis punctata.
It was assigned to Apatorthidae by Opik (1933) and Alikhova (1953); to Angusticardiniidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
It was assigned to Apatorthidae by Opik (1933) and Alikhova (1953); to Angusticardiniidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Apatorthis Opik |
| 1953 | Apatorthis Alikhova |
| 2000 | Apatorthis Williams et al. p. 799 |
| 2002 | Apatorthis Sepkoski |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Apatorthis Opik 1933
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†Apatorthis inflata Opik 1933
†Apatorthis jugata Opik 1933
†Apatorthis punctata Opik 1933
†Apatorthis tenuicosta d'Eichwald 1840
†Apatorthis tenuicostata d'Eichwald 1840
†Apatorthis ultima Opik 1933
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams et al. 2000 | Subtriangular to rostrate, uniplicate valves with small, well-developed alae; shell surface granular; dorsal interior lacking cardinal process. |